Question

sally runs 5km in 25 minutes. she plans to run in 20 km race. based on the current speed how long will it take her to complete the race?

Answer 1

Given:

Sally runs 5km in 25 minutes.

Total distance of race = 20 km

To find:

How long will it take her to complete the race?

Solution:

We have,

Time taken by Sally for 5 km = 25 minutes

Time taken by Sally for 1 km =
`(25)/(5)` minutes

= 5 minutes

Time taken by Sally for 20 km =
`20* 5` minutes

= 100 minutes

= 1 h 40 minutes [ 1 h = 60 min]

Therefore, the time taken by Sally to complete the race is 1 h 40 minutes.